Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-afcdfa16-128e-11f0-8aab-0022484c7d7d

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

12fc5a6e

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-468bb0cd-0070-451a-8cdd-637b2c5a08ea

Comm: tcp://127.0.0.1:38869	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:44193	Total threads: 1
Dashboard: http://127.0.0.1:39061/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:43721
Local directory: /tmp/dask-scratch-space/worker-9caa1afz

Worker: 1

Comm: tcp://127.0.0.1:34495	Total threads: 1
Dashboard: http://127.0.0.1:40233/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:42971
Local directory: /tmp/dask-scratch-space/worker-wxm3fsg2

Worker: 2

Comm: tcp://127.0.0.1:40397	Total threads: 1
Dashboard: http://127.0.0.1:41329/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:34537
Local directory: /tmp/dask-scratch-space/worker-yddasn4x

Worker: 3

Comm: tcp://127.0.0.1:33809	Total threads: 1
Dashboard: http://127.0.0.1:44769/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:41097
Local directory: /tmp/dask-scratch-space/worker-phpwwwu6

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)